31816431

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4327}}^1$

素因数の和:4395

約数の個数: 24

約数和(自身を含む): 49512320

約数和(自身を除く): 17695889

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 4327, 7353, 12981, 38943, 82213, 186061, 246639, 558183, 739917, 1674549, 3535159, 10605477, 31816431]

約数ペア:

[(1, 31816431), (3, 10605477), (9, 3535159), (19, 1674549), (43, 739917), (57, 558183), (129, 246639), (171, 186061), (387, 82213), (817, 38943), (2451, 12981), (4327, 7353)]